GooglevsxAI
xAI is ahead on reliability, success rate, agent responses, data accuracy, calls where the agent went quiet and response time, and Google on cost. The two tie on interruption.
Last updated Methodology by Dileep Chagam
Who is better at what
Each row sets Google's best model against xAI's best on that measure.
- Reliability62.2%Gemini 3.1 Flash Live Preview81.7%Grok Voice 3.0
- Success rate76.0%Gemini 3.8 Live Extended Thinking86.6%Grok Voice 3.0
- Agent responses95.9%Gemini 3.1 Flash Live Preview97.2%Grok Voice 3.0
- Data accuracy84.4%Gemini 3.8 Live Extended Thinking87.3%Grok Voice 3.0
- Went quiet2.0%Gemini 3.8 Live0.0%Grok Voice 3.0
- Interruption4.98Gemini 3.8 Live4.98Grok Voice 3.0
- Response time1.91sGemini 3.8 Live1.34sGrok Voice 3.0
- Cost / min$0.070Gemini 3.1 Flash Live Preview$0.080Grok Voice Think Fast 2.0
Model against model
Google vs xAI FAQ
Is Google or xAI better for speech-to-speech?
xAI is ahead, 19.5 points higher. The best Google result is Gemini 3.1 Flash Live Preview at 62.2%, and the best xAI result is Grok Voice 3.0 at 81.7%, on reliability.
xAI is ahead, 19.5 points higher. The best Google result is Gemini 3.1 Flash Live Preview at 62.2%, and the best xAI result is Grok Voice 3.0 at 81.7%, on reliability.
xAI is faster, 0.57s sooner. The best Google result is Gemini 3.8 Live at 1.91s, and the best xAI result is Grok Voice 3.0 at 1.34s, on response time.
Google: Gemini 3.8 Live Extended Thinking, Gemini 3.8 Live, Gemini 3.1 Flash Live Preview. xAI: Grok Voice Think Fast 2.0, Grok Voice 3.0. Every model ran the same tests on Speech-to-speech.